The sauna at Exhale Spa Battery Wharf in the city of Boston in the state of Massachusetts is often described as lacking in maintenance and cleanliness, with some guests finding it too cold or not functioning properly. Many patrons have expressed dissatisfaction with the overall spa experience, citing issues such as poor customer service, outdated facilities, and unexpected cancellations. Despite these concerns, a few visitors have appreciated the friendly staff and the relaxing environment when the amenities are in working order.